Coal mill air ring sealing structure convenient to disassemble
By designing a blade structure with slide grooves and threaded connections and a real-time monitoring system, the problem of disassembly of the mill air ring blades when they are worn is solved, and individual replacement of blades and abnormality warnings are achieved, which reduces maintenance costs and improves maintenance efficiency.
Patent Information
- Application Number
- CN202423098421.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-16
AI Technical Summary
When the blades of the existing coal mill air ring are severely worn, they cannot be disassembled and replaced individually, resulting in increased maintenance costs and waste of resources if the entire ring is replaced.
A coal mill air ring sealing structure that is easy to disassemble is designed, which adopts a blade design with slide grooves and threaded connections, and combines temperature sensors, vibration monitoring sensors and coal powder concentration monitors for real-time monitoring and early warning.
The blades can be replaced individually, which reduces maintenance costs and avoids waste of resources. Abnormal situations can be handled promptly through real-time monitoring and early warning to ensure normal use.
Smart Images
Figure CN223459886U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coal mill wind ring technical field especially, relates to a kind of coal mill wind ring sealing structure of easy disassembly. BACKGROUND
[0002] Coal mill wind ring, also known as air duct ring or air cylinder, is an important component of coal mill. Its main function is to separate the material and gas inside the coal mill, ensuring the normal operation and efficient work of the coal mill. At the same time, the wind ring can also play a role in noise reduction and dust pollution reduction, thereby protecting the environment.
[0003] The coal mill wind ring is usually composed of an inner ring and an outer ring. The inner ring is generally in the form of a sealing ring and is made of wear-resistant metal materials such as high-speed steel or hard alloy to improve the service life and wear resistance. The outer ring is formed by pultrusion casting, and the commonly used materials are high-hardness cast iron or stainless steel to improve its strength and corrosion resistance. However, the existing wind ring has blades fixedly connected inside, and when the blades are severely worn, the entire wind ring must be replaced, which cannot separately disassemble and replace the blades, thereby increasing maintenance costs and causing resource waste.
[0004] Therefore, we propose a new type of coal mill wind ring sealing structure that is easy to disassemble. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims to solve the problem in the prior art that the existing wind ring has blades fixedly connected inside, and when the blades are severely worn, the entire wind ring must be replaced, which cannot separately disassemble and replace the blades, thereby increasing maintenance costs and causing resource waste.
[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coal mill wind ring sealing structure that is easy to disassemble, comprising a wind ring main body, a disassembly and assembly sealing assembly is arranged inside the wind ring main body, the disassembly and assembly sealing assembly comprises a sliding groove, the sliding groove is annularly opened in the inner wall of the wind ring main body, each group of sliding grooves is connected with a blade inside, a threaded hole is opened in the top of the wind ring main body close to the sliding groove, sealing rubber is connected to the both sides of the blade, a top cover is connected to the top of the blade, a slot hole is penetratively opened in the both sides of the top cover, and a bolt is inserted into the slot hole.
[0007] Further, the outer surfaces of the both sides of the blade are fitted with the inner wall of the sliding groove, and the blade and the sliding groove form a sliding connection.
[0008] Further, the position and size of the slot hole are matched with the position and size of the threaded hole, and the bolt forms a threaded connection between the slot hole and the threaded hole after penetrating the slot hole.
[0009] Further, the rear surface of the wind ring body is annularly provided with a monitoring assembly, the monitoring assembly comprises a digital sticker, the front surface of the wind ring body is annularly connected with a temperature sensor, one side of the temperature sensor is connected with a vibration monitoring sensor.
[0010] Further, one side of the vibration monitoring sensor is connected with a coal powder concentration monitor, one side of the coal powder concentration monitor is electrically connected with a PLC display.
[0011] Further, the PLC display is electrically connected with an external power supply through a control switch, and the PLC display is electrically connected with the temperature sensor, the vibration monitoring sensor and the coal powder concentration monitor.
[0012] Compared with the prior art, the advantages and positive effects of the utility model are that,
[0013] 1、The utility model discloses a kind of wind ring sealing structures of mill convenient to disassemble, when blade appears serious abrasion condition, blade can be individually disassembled, realize the replacement of blade, avoid the problem that blade damage needs to replace wind ring body as a whole, reduce maintenance cost, avoid the waste of resources.
[0014] 2、The utility model discloses a kind of wind ring sealing structures of mill convenient to disassemble, when blade appears abnormal vibration, temperature rises and other abnormal conditions, timely send early warning signal, so as to timely take measures to handle, to avoid the problem of affecting normal use. DRAWINGS
[0015] Figure 1 A three-dimensional structure schematic diagram of the utility model is provided for a convenient-to-disassemble mill wind ring sealing structure;
[0016] Figure 2 A partial explosion structure schematic diagram of the utility model is provided for a convenient-to-disassemble mill wind ring sealing structure;
[0017] Figure 3 A partial section structure schematic diagram of the utility model is provided for a convenient-to-disassemble mill wind ring sealing structure;
[0018] Figure 4 A PLC display structure schematic diagram of the utility model is provided for a convenient-to-disassemble mill wind ring sealing structure;
[0019] Figure 5 A circuit connection schematic diagram of the utility model is provided for a convenient-to-disassemble mill wind ring sealing structure.
[0020] Legend: 1. Air ring body; 2. Disassembly and assembly of sealing assembly; 201. Slide groove; 202. Threaded hole; 203. Blade; 204. Sealing rubber; 205. Top cover; 206. Slot hole; 207. Bolt; 3. Monitoring assembly; 301. Digital sticker; 302. Temperature sensor; 303. Vibration monitoring sensor; 304. Coal powder concentration monitor; 305. PLC display. DETAILED DESCRIPTION
[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.
[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Example 1, as Figure 1 - Figure 3 As shown, the present invention provides a coal mill air ring sealing structure that is easy to disassemble, including an air ring main body 1, a disassembly and assembly sealing component 2 is arranged inside the air ring main body 1, and the disassembly and assembly sealing component 2 includes a slide groove 201, the slide groove 201 is annularly opened on the inner wall of the air ring main body 1, and each group of slide grooves 201 is connected to a blade 203, and the air ring main body 1 is provided with a threaded hole 202 near the top of the slide groove 201, and sealing rubber 204 is connected to both sides of the blade 203, and the top of the blade 203 is connected to a top cover 205, and slots 206 are opened through the interior of the top cover 205 on both sides, and bolts 207 are inserted into the interior of the slot hole 206, and the outer surfaces of the two sides of the blade 203 are in contact with the inner wall of the slide groove 201, so that the blade 203 and the slide groove 201 form a sliding connection, and the position and size of the slot hole 206 match the position and size of the threaded hole 202. After the bolt 207 passes through the slot hole 206, it forms a threaded connection with the threaded hole 202.
[0024] The effect achieved by the whole embodiment 1 is that when the blade 203 is seriously worn, the blade 203 can be individually disassembled, and when disassembled, the bolt 207 can be taken out by reverse rotation, and the top cover 205 can be pulled upwards, so that the top cover 205 can drive the blade 203 to slide out of the sliding groove 201, then a new blade 203 is inserted into the sliding groove 201, and the sealing rubber 204 is arranged on both sides, which can play a sealing role after being inserted into the sliding groove 201, then the bolt 207 is screwed into the threaded hole 202 after penetrating the slot hole 206, which can realize the replacement of the blade 203, avoid the problem that the whole wind ring body 1 needs to be replaced when the blade 203 is damaged, reduce the maintenance cost, and avoid the waste of resources.
[0025] Embodiment 2, as shown in Figure 1 and Figure 4 The rear surface of the wind ring body 1 is annularly provided with a monitoring assembly 3, the monitoring assembly 3 comprises a digital sticker 301, the front surface of the wind ring body 1 is annularly connected with a temperature sensor 302, one side of the temperature sensor 302 is connected with a vibration monitoring sensor 303, one side of the vibration monitoring sensor 303 is connected with a coal dust concentration monitor 304, one side of the coal dust concentration monitor 304 is electrically connected with a PLC display 305, the PLC display 305 is electrically connected with an external power supply through a control switch, and the PLC display 305 is electrically connected with the temperature sensor 302, the vibration monitoring sensor 303 and the coal dust concentration monitor 304.
[0026] The effect achieved by the whole embodiment 2 is that the temperature sensor 302 helps to determine whether the thermal performance of the coal mill is stable, and whether the hot air temperature or air volume needs to be adjusted, the vibration data can be obtained through the vibration monitoring sensor 303, whether the wind ring has abnormal vibration or wear, and whether it needs to be stopped for maintenance, the coal dust concentration monitor 304 helps to determine whether the coal grinding effect of the coal mill is good, and whether the parameters of the coal mill need to be adjusted, the data can be monitored in real time through the PLC display 305, and the digital sticker 301 can help the operator to find the area where the problem is located in time, improving the convenience of maintenance.
[0027] Working principle: when the blade 203 is seriously worn, the blade 203 can be individually disassembled, the blade 203 can be replaced, the problem that the whole wind ring body 1 needs to be replaced when the blade 203 is damaged can be avoided, the maintenance cost is reduced, and the waste of resources is avoided, through the functions of the temperature sensor 302, the vibration monitoring sensor 303 and the coal dust concentration monitor 304, when the blade 203 has abnormal vibration, temperature rise and other abnormal conditions, a warning signal can be sent in time, so that measures can be taken in time to avoid affecting the normal use.
[0028] The above merely is the preferred embodiment of the present application, and does not limit the present application in other forms, and any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments with equivalent changes applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.
Claims
1. A seal structure for a wind ring of a coal mill, which is easy to disassemble, comprising a wind ring body (1), characterized in that: The inside of the wind ring body (1) is provided with a dismounting and sealing assembly (2); The dismounting and sealing assembly (2) comprises a sliding groove (201) which is annularly arranged on the inner wall of the wind ring body (1), each sliding groove (201) is connected with a blade (203), the top of the wind ring body (1) is provided with a threaded hole (202) near the sliding groove (201), the blade (203) is connected with sealing rubber (204) on both sides, the top of the blade (203) is connected with a top cover (205), the both sides of the top cover (205) are provided with a slot hole (206), and the slot hole (206) is inserted with a bolt (207).
2. The easily dismountable seal structure for the wind ring of the coal mill according to claim 1, characterized in that: The outer surface of the blade (203) is attached to the inner wall of the sliding groove (201), and the blade (203) and the sliding groove (201) are slidably connected.
3. The easily dismountable seal for a coal mill wind ring as claimed in claim 2, characterized in that: The position and size of the slot hole (206) are matched with the position and size of the threaded hole (202), and the bolt (207) is threadedly connected with the threaded hole (202) after penetrating the slot hole (206).
4. The easily disassembled seal for a coal mill wind ring of claim 1, wherein: The rear surface of the wind ring body (1) is annularly provided with a monitoring assembly (3), the monitoring assembly (3) comprises a digital sticker (301), the front surface of the wind ring body (1) is annularly connected with a temperature sensor (302), and one side of the temperature sensor (302) is connected with a vibration monitoring sensor (303).
5. The easily dismountable seal for a coal pulverizer wind ring as claimed in claim 4, wherein: One side of the vibration monitoring sensor (303) is connected with a coal dust concentration monitor (304), and one side of the coal dust concentration monitor (304) is electrically connected with a PLC display (305).
6. The easily disassembled seal for a coal mill wind ring as claimed in claim 5, wherein: The PLC display (305) is electrically connected with an external power supply through a control switch, and the PLC display (305) is electrically connected with the temperature sensor (302), the vibration monitoring sensor (303) and the coal dust concentration monitor (304).